I took my diff cover off because I had a loud popping noise coming from my rear end but there is no where but my rear tires are locked up with the rear jacked in the air with the drive shaft out I can't figure it out

What happened? What did the jeep do when this happened? Can you drive it at all? Can you spin the tires? Do you have pictures to share? Can you fill in your profile so we know what may have led to this?